University of Pennsylvania faculty

243 quotes found

"Whenever like mates with like (genetically), the statistical distribution curve, which describes the frequency of the purely fortuitous combinations of genes, is flattened out, its mode is depressed, and its extremes are increased. This reduces the number of the mediocre produced and increases the numbers both of the sub-normal and the talented groups. It is possible that, without this increase in the number of extreme variants, no nation, race or group could produce enough superior individuals to maintain a complex culture. Certainly not enough to operate or advance a civilization. ...Any number of social customs have stood, and still stand, in the way of an optimum amount of selective matings. In a feudal society, opportunities are denied to many able men who, consequently, never develop to the high level of their biological potential and thus they remain among the undistinguished. Such able men (and women) might also be diffused throughout an "ideal" classless society and, lacking the means to separate themselves from the generality, or to develop their peculiar talents, would be effectively swamped. In such a society they could hardly segregate in groups. In fact, only a few of the able males might ever meet an able female who appealed to them erotically. Obviously an open society—one in which the able may rise and the dim-wits sink, and where like intelligences have a greater chance of meeting and mating—has advantages that other societies do not have. Our own society today—incidentally and without design—is providing more and more opportunities for intelligent matrimonial discrimination. It is possible that our co-educational colleges, where highly-selected males and females meet when young, are as important in their function of bringing together the parents of our future superior individuals as they are in educating the present crop."

- Conway Zirkle

0 likesBotanists from the United StatesHistorians from the United StatesPhilosophers from the United StatesUniversity of Pennsylvania faculty
"I remember how happy I felt when I graduated from Berkeley many years ago. But I thought the graduation speeches were long. I will economize on words. Economics is organized common sense. Here is a short list of valuable lessons that our beautiful subject teaches.1. Many things that are desirable are not feasible. 2. Individuals and communities face trade-offs. 3. Other people have more information about their abilities, their efforts, and their preferences than you do. 4. Everyone responds to incentives, including people you want to help. That is why social safety nets don’t always end up working as intended. 5. There are tradeoffs between equality and efficiency. 6. In an equilibrium of a game or an economy, people are satisfied with their choices. That is why it is difficult for well-meaning outsiders to change things for better or worse. 7. In the future, you too will respond to incentives. That is why there are some promises that you’d like to make but can’t. No one will believe those promises because they know that later it will not be in your interest to deliver. The lesson here is this: before you make a promise, think about whether you will want to keep it if and when your circumstances change. This is how you earn a reputation. 8. Governments and voters respond to incentives too. That is why governments sometimes default on loans and other promises that they have made. 9. It is feasible for one generation to shift costs to subsequent ones. That is what national government debts and the U.S. social security system do (but not the social security system of Singapore). 10. When a government spends, its citizens eventually pay, either today or tomorrow, either through explicit taxes or implicit ones like inflation. 11. Most people want other people to pay for public goods and government transfers (especially transfers to themselves). 12. Because market prices aggregate traders’ information, it is difficult to forecast stock prices and interest rates and exchange rates."

- Thomas J. Sargent

0 likesEconomists from the United StatesNobel laureates in EconomicsPeople from Los AngelesNobel laureates from the United StatesUniversity of Pennsylvania faculty
"The cognitive behavior of Western intellectuals faced with the accomplishments of their own society, on the one hand, and with the socialist ideal and then the socialist reality, on the other, takes one's breath away. In the midst of unparalleled social mobility in the West, they cry "caste." In a society of munificent goods and services, they cry either "poverty" or "consumerism." In a society of ever richer, more varied, more productive, more self-defined, and more satisfying lives, they cry "alienation." In a society that has liberated women, racial minorities, religious minorities, and gays and lesbians to an extent that no one could have dreamed possible just fifty years ago, they cry "oppression." In a society of boundless private charity, they cry "avarice." In a society in which hundreds of millions have been free riders upon the risk, knowledge, and capital of others, they decry the "exploitation" of the free riders. In a society that broke, on behalf of merit, the seemingly eternal chains of station by birth, they cry "injustice." In the names of fantasy worlds and mystical perfections, they have closed themselves to the Western, liberal miracle of individual rights, individual responsibility, merit, and human satisfaction. Like Marx, they put words like "liberty" in quotation marks when these refer to the West."

- Alan Charles Kors

0 likesHistorians from the United StatesFree speech activistsPeople from New JerseyPeople from PhiladelphiaUniversity of Pennsylvania faculty
"Results suggest assault weapons (primarily assault-type rifles) account for 2–12% of guns used in crime in general (most estimates suggest less than 7%) and 13–16% of guns used in murders of police. Assault weapons and other high-capacity semiautomatics together generally account for 22 to 36% of crime guns, with some estimates upwards of 40% for cases involving serious violence including murders of police. Assault weapons and other high-capacity semiautomatics appear to be used in a higher share of firearm mass murders (up to 57% in total), though data on this issue are very limited. Trend analyses also indicate that high-capacity semiautomatics have grown from 33 to 112% as a share of crime guns since the expiration of the federal ban—a trend that has coincided with recent growth in shootings nationwide.... AW [assault weapon] laws also commonly include restrictions on large-capacity magazines (LCMs), which are typically defined as ammunition feeding devices holding more than ten rounds of ammunition (some laws have higher limits). LCM restrictions are arguably the most important components of AW laws in that they also apply to the larger class of high-capacity semiautomatic firearms without military-style features. In the broadest sense, AW-LCM laws are thus intended to reduce gunshot victimizations by limiting the stock of semiautomatic firearms with large ammunition capacities and other features conducive to criminal use.... Importantly, trend analyses suggest that LCM firearms have grown substantially as a share of crime guns since the expiration of the federal ban on AWs and LCMs."

- Christopher S. Koper

0 likesAcademics from the United StatesSociologists from the United StatesUniversity of Pennsylvania faculty
"that reminds me of the work of Lisa Delpit, right, who, um, kind of looked at the cultural differences in parental communication, and found, in her work with African American parents, that they were more directive, um, than in white middle-class families. And then, what happens when those children get to school is that, the teachers who have been socialized – because most of the teachers are white women, by demographics – they’ve been socialized into this more passive way of making requests, where they’ll say, “Don’t you think you should be doing this?” The child, the child may not actually understand that that actually was a directive, right? Because it was a directive-the teacher was making a request, and the child didn’t necessarily understand it was a request, and maybe actually thought that they had a choice when you said, “Don’t you think you should – ” Which gets, again, to the importance of understanding cultural difference, and not assuming that one is more quality than the other. I mean, Lisa Delpit makes it very clear, in her work, that it’s not that black parents care less about their children. They love their children, they are – they have a particular history, um, where maybe there are needs to be more directive. Because if not, um, their child isn’t gonna be socialized to deal with an antiblack world, that expects people to – expects black people, in particular, to adhere to directives, right?"

- Nelson Flores

0 likesEducators from the United StatesUniversity of Pennsylvania faculty
"…we cannot even establish a definite correlation between the end of the Indus civilization and the Aryan invasion. But even if we could, what is the material evidence to substantiate the supposed invasion and massacre? Where are the burned fortresses, the arrowheads, weapons, pieces of armor, the smashed chariots and bodies of the invaders and defenders? Despite extensive excavations at the largest Harappan sites, there is not a single bit of evidence that can be brought forth as unconditional proof of an armed conquest and the destruction on the supposed scale of Aryan invasion. It is interesting that Sir John Marshall himself, the Director of the Mohenjo-daro excavations that first revealed the "massacre" remains separated the end of the Indus civilization from the time of the Aryan invasion by two centuries. He attributed the slayings to bandits from the hills of west of the Indus, who carried out sporadic raids on an already tired, decaying, and defenseless civilization. The contemporaneity of the skeletal remains is anything but certain. Whereas a couple of them definitely seem to represent a slaughter, in situ, the bulk of the bones were found in contexts suggesting burials of sloppiest and most irreverent nature. There is no destruction level covering the latest period of the city, no sign of extensive burning, no bodies of warriors clad in armor and surrounded by weapons of war. The citadel, the only fortified part of the city, yielded no evidence of a final defence. …..Indra and the barbarian hordes are exonerated."

- George F. Dales

0 likesArchaeologists from the United StatesEducators from the United StatesAcademics from the United StatesUniversity of Pennsylvania facultyUniversity of California, Berkeley faculty
"Psychological science has a great deal to contribute to social welfare in all societies, because the world's most pressing social problems are behavioral in nature—, hunger, , , low worker productivity, poor educational outcomes, and so forth. Thus, psychological research can inform to improve approaches to these important s. The relationship of psychological science to public policy is often troubled, however, by misunderstandings about the role of science in the policy making process. Many scientists fear that their research results will be “misused” by others whose values differ from those of scientists. Thus, psychologists are reluctant to publish research results that can be used to support policies contrary to their own values and hesitate to ask research questions that can generate politically incorrect results. In this article, I argue that psychological science has a primary responsibility to ask dangerous questions and to report results honestly, without fear of their use; that research is not translated directly into public policies; and that psychological science should not be perverted either by fear of political consequences or by compromising truth in a quest for power. Three research examples are given to illustrate the different faces of temptation to pervert psychological science in a misguided hope that scientists' own values will be reflected in public policies."

- Sandra Scarr

0 likesHarvard University alumniPeople from Washington, D.C.Psychologists from the United StatesScience authors from the United StatesUniversity of Pennsylvania faculty